Fire-extinguisher.



T. P. McGALL. 5 FIRE BXTINGUISHBR. UPIJIOATION FILED ROY. 8, 1909.

l oyi Patented July 12, 1910.

UNITE snare PATENT y I THOMAS P. MOCALL, OF RAYMOND, MISSISSIPPI,ASSIGNOR 0F ONE-HALF T0 RUDERIQK; A. FEHGFI'J'S()N, 0F RAYMOND,MISSISSIPPI.

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Specification of Letters Patent.

Patented any 112, taro..

To all whom 'it may concern:

Be it known that I, THOMAS P. McCALL, a citizen of the United States,residing at Raymond, in the county of Hinds and State of Mississippi,have invented certain new and useful Improvements in Fire-Extinuishers,of which the following is a specication.

This invention relates to improvements in fire extinguishers, andparticularly to auto matic fire extinguishers arranged to flood thebuilding or room in case of fire.

The object in view is the provision of a valve arranged with anexplosive for open ing the same for controlling a system of s waterdistributing pipes, and the like.

Another object of the invention is the provision of a valve adapted tobe opened upon the explosion of an explosive substance connectedtherewith, which has one or more fuses leading therefrom and distributedat any desired place for igniting the explosive charge in case of firein any part of the room or building to which the valve is secured.

With these and other objects in viewthe invention comprises certainnovel constructions,combinat1ons and arrangement of parts as will behereinafter more fully describedand claimed.

In the accompanying drawings: Figure 1 is a fragmentary view of abuilding With a system of water distribution and spraying meansconnected with the controlling valve the water distributing system andvalve embodyin the invention. Fig. 2 is an enlarged view 0 a valve shownin an open position, but with the explosive connected therein still inposition.

" Referrin to the accompanyingdrawings by numera s, 1 indicates ahousing of any desired kind which may be provided .With a plurality ofrooms 2, 3, 4: and 5 as desired, in which valves (3 are positioned.Valves 6 are arrangedto carry a sprinkling bulb or other waterdistributin means 7, and in turn are connected to a pipe 8, which pipeis in free communication with a general supply pipe 9. General supplypipe 9 may have a valve 10 interposed therein for controlling manually aflow of water therein. Connected to each of the valves (3, and also tovalve 11, which isalso of the same structure as valves 6, are one ormore fuses 12. The

fuses 12 extend from the top of the stem of the valve which carries anexplosive mixture, 13 to any desired point. Preferably there 1 are anumber of these fuses extending from each valve to various parts of thebuilding or room, so that in case fire is started at'any ei point thefuse near that point will be almost immediately ignited and the firecommunicated to the explosive 13, which upon being ignited will explodeand raise valve member '14 from its seat- 15 and permit water or otherfire extinguishing medium to pass from pipe 8 to pipe 16, and fromthence into sprinkler 7 If desired pipe 16 may carry a plurality ofsprinklers or a plurality of perforatedzflo pipes as desired forthoroughly distributing the fire extinguishing fluids in the vicinity;of valve 6. The valve will remain open after the same has been forcedopen by the ex'- plosive 13 until the same has been manually "in closed.The ordinary friction of the stern 17 will prevent the valve fromdropping down, especially as the same is assisted by the u Ward pressureof the fire extinguishing uid as the same passesthrough the an valve.

The valve is further retained by means described below.

The valve 6, as more clearly seen in Fig. 2, is formed with a stem 18comparatively 8% long in order to guide the movable stem'ifii connectedrigidly with valve member 14h The member 18 is removably secured in 0--sition, and has positioned at its upper end a' washer 19, preferably oflead and threaded to stem 18, and above which is arranged a housing 20.Housing 20 carries the explosive 13, and is prevented from movin off thestem 17 when explosive 13 has een ignited, by head 22. When the valve isclosed valve member 14 of course Will be upon its seat 15, and thehousin 20 will be resting against washer 19. mmediately upon theexplosive 13 becoming ignited the force of the explosion will partlymelt 00 washer 19, and at the same time quickly raise stem 17 of valve14. Some of the lead from Washer 19 will run around the stem 17, andwill assist in preventing the return of the stem until manually moved toits low ered or closed position.

In arranging the fire-extinguishing system a valve provided with anexplosive is preferably locatediin each room, and connected to a generalsupply of fire extin uishing medium, so that in case there is a re inone room the fire extinguishing medium will be turned on in that roomonly, unless the fire should spread to the other rooms. This is ofconsiderable advantage in that the damage will be localized, and nogeneral inconvenience caused.

What I claim is:

1. In a fire extinguisher, a valve casing, a valve operating therein, anexplosive material for moving the valve, and a material adapted to befused by the explosive material and tending to prevent the valve fromclosing after it has been forced open by the ignition of the explosive.-

2. In a fire extinguisher, a valve casing, a valve operating therein, astem for said valve, an explosive material for moving said valve, avalve stem, a washer in contact with the valve stem, such Washer beingof material adapted to be fused by the explosive material and tending toprevent the valve from closing after it has been forced open by theignition of the explosive.

In a fire extinguisher, a supply pipe, a valve casing connectedtherewith, a valve arranged to reciprocate in the casing, a valve stem,connected with the valve, a cap afiixed to one end of the valve stem, anexplosive material Within the cap, a Washer of fusible materialsurrounding the valve stem, said stem being adapted to be retained inposition to hold the valve open, by the partial fusing of the washer.

4:. In a fire extinguisher, a supply pipe, a

valve casing connected therewith, a valve operatin in the casing, avalve stem connected With the valve, a guiding member for said stem, acap connected with one end of the stem, a washer of fusible materialsurrounding the stem and disposed within the lower portion ofthe cap,and an explosive material Within the cap and located between the upperside thereof and the fusible Washer.

5. In a fire extinguisher, means for supplying a fire extinguishingmedium, a pipe extending therefrom, a valve connected with said ipeformed with a reciprocating valve mem er, and a valve rod, anexplosive,'a housing rigidly secured to said valve rod, and inclosingsaid explosive, whereby when said explosive has been i nited the samewill move said valve rod and valve member for opening said valve, aplurality of fuses extending from said explosive, and a fireextinguishing medium distributer connected with said valve and designedtodistribute the fire extinguishing medium in the vicinity of saidvalve.

In testimony whereof I affix my signature in presence of two Witnesses.

- THOMAS P. MGCALL.

Witnesses J. C. PEYToN, J. W. County.

